Sea Demon City, located in the south-east of the Yuheng Continent, was named Tiangang City before it was captured by the demons, and it was one of the best cultivation cities in the eastern part of the continent.

Although the current Tiangang City has been occupied by the demons and renamed as Sea Demon City, this city is still one of the best existences in the eastern part of the continent, and it is under the jurisdiction of the Hailan Demon Royal Clan among the thirty-six royal families in the True Demon Realm.

In the Sea Demon City, there are four or five million demon armies stationed all year round, and there are also tens of millions of demon residents who have migrated from the True Demon Realm.

Since the outbreak of the Demon Tribulation, with the development and growth of the Demon Clan's forces on the Yuheng Continent, the Demon Race has long ceased to simply occupy the Beidou Realm at the beginning, but has changed from occupation to migration.

Occupation and migration are two completely different concepts, the so-called occupation is like a war between two mortal nations, the victorious side occupies the territory of the defeated side, but this is only a simple occupation, and the other side may take it back.

Migration, on the other hand, is like a victorious country that has seized the territory of a defeated country and then let its citizens move over and live there, and regard the occupied territory as its own territory, and is not afraid of the other party's robbery.

Although the two concepts of occupation and migration don't sound like much difference, the meaning is completely different, which means that the True Demon Clan has completely regarded the cultivation city occupied by Beidou as its own territory, and is not afraid of Beidou's cultivators snatching it back.

Although the Beidou Realm has not completely fallen into the territory of the True Demon Clan, but in a large cultivation city like Sea Demon City, the Demon Clan has already begun to migrate a large number of clansmen, not only that, within a radius of hundreds of miles of the cultivation city, there are plants in the True Demon Realm such as the Demon Source Flower planted everywhere.

A plant like the Demon Source Flower can automatically transform the Heaven and Earth Yuan Qi into the True Demon Qi, so that the True Demon Clan no longer needs to rely on the Demon Qi in the Demon Crystal to cultivate.

There are a large number of demonic qi transformed from the True Demon Realm plants, and the True Demon Clan is enough to maintain the daily cultivation needs, and with the increasing number of Demon Realm plants, the amount of demonic qi in the Beidou Realm is also getting stronger and stronger, and it is also slowly changing the cultivation environment of the Beidou Realm.

This is like a stone that has been infected with demonic energy all year round, and with the passage of time, it will slowly undergo mutations, and it will change into a stone with demonic aura.

And the current Beidou Realm is exactly like this, if the demonic qi is allowed to become stronger and stronger, sooner or later the entire Beidou Realm will become an interface suitable for the cultivation and survival of the demon clan like the True Demon Realm.

"These damn demons, it seems that they are ready to stay in my Beidou Realm and are not ready to leave, but they have actually made this radius of millions of miles like this, where is this still like the Beidou Realm, it has clearly become a demon domain!"

Looking at the huge Sea Demon City in his sight, as well as the Demon Source Flowers that could be seen everywhere outside the Sea Demon City, Li Mu's face was very ugly, he couldn't feel the existence of much Heaven and Earth Yuan Qi anymore, and all the demonic energy he felt.

At this moment, Li Mu was alone, and he hid his appearance and cultivation with the hermit technique, and became a blue-haired demon who only had the early stage of the Demon Lord.

The reason why he became the appearance of the demon clan was because Li Mu wanted to use the usual tricks in the past to sneak into the sea demon city first, and then take the demon clan in the sea demon city by surprise, so as to avoid dealing with the sea demon city moat array, and he could also catch the demon clan off guard.

But before Li Mu could enter the city, he saw the changes in the environment of heaven and earth within a radius of millions of miles with Sea Demon City as the center, and the closer this change was to Sea Demon City, the more serious it became.

As Li Mu got closer and closer to Sea Demon City, he couldn't even feel that he was still in the Beidou Realm, because the Heaven and Earth Yuan Qi that was free between heaven and earth was basically gone, and it was replaced by more and more refined Demon Qi.

Although Li Mu in the eastern part of the continent is coming for the first time, this is still in the Beidou Realm, it is on the Yuheng Continent, and it is also Li Mu's homeland, seeing that his home was made into such a look by the demons, Li Mu was not angry in his heart, it was fake.

Holding back the anger in his heart, Li Mu quickly flew towards the gate of the Sea Demon City, he only wanted to do one thing in his heart now, that is, to capture this Sea Demon City, and then destroy all the elaborate arrangements of the Demon Clan.

However, what Li Mu didn't expect was that he was still more than a hundred zhang away from the gate of Sea Demon City, and a black magic mirror suddenly flew out from the tower of Sea Demon City, and a black magic light burst out, shooting straight towards him.

"What's going on!!"

Facing the unexpected attack of the Black Demon Mirror, Li Mu's face immediately changed greatly, and he could feel the powerful power contained in the Black Demon Light, which had at least reached the level of the full force of the Demon Clan in the middle of the Holy Rank.

There was no time to dodge, the power of the Law of Destruction in Li Mu's body worked, and then he urged the True Demon Peerless Domain, condensing an invisible field in front of him.

"Boom!!"

As soon as the invisible field outside Li Mu's body was condensed, the black magic light that burst out from the magic mirror on the upper floor of Sea Demon City hit the True Demon Peerless Domain outside his body, causing a deafening loud noise.

With a powerful impact force acting on the True Demon Peerless Domain, Li Mu's body was forced to retreat more than a dozen steps away, although his defense was not breached, but it was obviously not very easy to withstand the blow of this black magic mirror.

"There are remnants of Beidou coming to commit crimes, be on guard!!"

The abnormal movement caused by Li Mu naturally did not escape the demons guarding the gate of the Sea Demon City, only to hear a man's loud shout, mixed with the power of not weak spiritual consciousness from the city tower, and then in the air outside the Sea Demon City, a layer of black spiritual light curtain lit up, covering the entire Sea Demon City, which was the protective array of the Sea Demon City.

As soon as the Sea Demon City's protective array was activated, tens of thousands of demon guards flew out of the Sea Demon City, and all of them stared at Li Mu outside the city with fierce eyes.

"I didn't expect people to be exposed before they entered the city, and they didn't even work for my retreat technique, this magic mirror is a bit interesting, and the glass mirror has the same effect, but it seems to be stronger than the glass light mirror, after discovering the breath of the alien race, it can actually take the initiative to attack!"

Facing the gazes of tens of thousands of demons, Li Mu muttered in his heart, his eyebrows flashed, and the others were released by him.

"Brother Li, what's going on, didn't you say that when you sneak into the Sea Demon City, you will call us out to help, why is this exposed before you enter the city!"

As soon as Li Mu was released from the realm space, Jiu Zhongyan and the others saw the current situation clearly, and among them, Ling Tianxiao couldn't help but mutter.

"You can't blame me, have you seen that magic mirror, it is similar to the glass mirror, even if my magic power of the transformation of the hidden art is mysterious, it still can't escape its induction. ”

Li Mu said, pointing to the black magic mirror on the upper floor of Sea Demon City.

"I've never heard of the demons developing this kind of strange treasure before, it's not easy to do now, our plans have been completely disrupted. ”

Elder Ren Tianpo of the Xiaoyao Sect said dejectedly.

"What does it mean to be completely disrupted, although this is a lot of trouble, but we are here, we can't go back empty-handed, since the plan to infiltrate the city has failed, then we will attack!"

"Brother Xiao Su, create a bow!"

Li Mu didn't show any frustration, he greeted Xiao Su as he spoke, and then sacrificed the Water Emperor Ding.

Xiao Su knew what Li Mu meant, and as Li Mu sacrificed the Water Emperor Ding, he also quickly took out the Creation Bow.

"Let's work together to break through the protective array of this Sea Demon City first, and then the master and the peerless seniors will release our people and force them into for me!"

After sacrificing the Water Emperor Ding, Li Mu frantically injected the True Yuan in his body into the Water Emperor Ding, and at the same time greeted the Wuji and the others.

"Brother Li, don't you think about it again, it's not that I, Ling Tianxiao, am greedy for life and afraid of death, we can't sneak into the Sea Demon City now, and we don't know anything about the specific situation of the demon clan in the city, so I don't know who I am, I'm afraid there will be problems." ”

Ling Tian said with a frown.

"What are you afraid of, we have three imperial weapons plus an immortal weapon in hand, I still don't believe that we can't take this mere Sea Demon City, no matter what, we have to gamble!"

Li Mu didn't pay attention to Ling Tianxiao's proposal, and with the continuous influx of his True Yuan, a powerful spiritual power within the Water Emperor Ding instantly recovered, and at the same time, a blue column of water rushed out from the Blue Treasure Ding......